yeah but even so what are you gonna do with it?  you can't use it if you don't know japanese and have a way to buy stuff from there.. all the videos are japanese with no subtitles and most are just japanese TV shows

otherwise renaming it might work unless they put some kind of check on it or the psp expects data in a certain area in the rco and its not there cause its renamed... it might work.. id just make sure to back it all up in just in case cause ya never know.. i mean wee have replaced those in ealier FW to run homebrew and stuff